/***** BEGIN LICENSE BLOCK *****
 * Version: CPL 1.0/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Common Public
 * License Version 1.0 (the "License"); you may not use this file
 * except in compliance with the License. You may obtain a copy of
 * the License at http://www.eclipse.org/legal/cpl-v10.html
 *
 * Software distributed under the License is distributed on an "AS
 * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
 * implied. See the License for the specific language governing
 * rights and limitations under the License.
 *
 * Copyright (C) 2001-2002 Jan Arne Petersen <jpetersen@uni-bonn.de>
 * Copyright (C) 2002 Benoit Cerrina <b.cerrina@wanadoo.fr>
 * Copyright (C) 2002-2004 Anders Bengtsson <ndrsbngtssn@yahoo.se>
 * Copyright (C) 2004 Charles O Nutter <headius@headius.com>
 * Copyright (C) 2004 Stefan Matthias Aust <sma@3plus4.de>
 * 
 * Alternatively, the contents of this file may be used under the terms of
 * either of the GNU General Public License Version 2 or later (the "GPL"),
 * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
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 * use your version of this file under the terms of the CPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the CPL, the GPL or the LGPL.
 ***** END LICENSE BLOCK *****/
package asruby.runtime {

import asruby.Ruby;
import asruby.lang.RubyClass;
import asruby.runtime.callback.Callback;
import asruby.runtime.callback.InvocationCallbackFactory;
import asruby.util.JRubyClassLoader;

/**
 * Helper class to build Callback method.
 * This impements method corresponding to the signature of method most often found in
 * the Ruby library, for methods with other signature the appropriate Callback object
 * will need to be explicitly created.
 **/
public class CallbackFactory {
    public static var NULL_CLASS_ARRAY: Array =  new Class[0];
    
    /**
     * gets an instance method with no arguments.
     * @param method name of the method
     * @return a CallBack object corresponding to the appropriate method
     **/
    public function getMethod0(method:String):Callback {return null;}
    public function getFastMethod0(method:String):Callback {return null;}

    /**
     * gets an instance method with 1 argument.
     * @param method name of the method
     * @param arg1 the class of the only argument for this method
     * @return a CallBack object corresponding to the appropriate method
     **/
    public function getMethod1(method:String, arg1:Class):Callback {return null;}
    public function getFastMethod1(method:String, arg1:Class):Callback {return null;};

    /**
     * gets an instance method with two arguments.
     * @param method name of the method
     * @param arg1 the java class of the first argument for this method
     * @param arg2 the java class of the second argument for this method
     * @return a CallBack object corresponding to the appropriate method
     **/
    public function getMethod2(method:String, arg1:Class, arg2:Class):Callback {return null;}
    public function getFastMethod2(method:String, arg1:Class, arg2:Class):Callback {return null;}
    
    /**
     * gets an instance method with two arguments.
     * @param method name of the method
     * @param arg1 the java class of the first argument for this method
     * @param arg2 the java class of the second argument for this method
     * @param arg3 the java class of the second argument for this method
     * @return a CallBack object corresponding to the appropriate method
     **/
    public function getMethod3(method:String, arg1:Class, arg2:Class, arg3:Class):Callback {return null;}
    public function getFastMethod3(method:String, arg1:Class, arg2:Class, arg3:Class):Callback {return null;}

    /**
     * gets a singleton (class) method without arguments.
     * @param method name of the method
     * @return a CallBack object corresponding to the appropriate method
     **/
    public function getSingletonMethod(method:String):Callback {return null;}
    public function getFastSingletonMethod(method:String):Callback {return null;}

    /**
     * gets a singleton (class) method with 1 argument.
     * @param method name of the method
     * @param arg1 the class of the only argument for this method
     * @return a CallBack object corresponding to the appropriate method
     **/
    public function getSingletonMethod1(method:String, arg1:Class):Callback {return null;}
    public function getFastSingletonMethod1(method:String, arg1:Class):Callback {return null;}

    /**
     * gets a singleton (class) method with 2 arguments.
     * @param method name of the method
     * @return a CallBack object corresponding to the appropriate method
     **/
    public function getSingletonMethod2(method:String, arg1:Class, arg2:Class):Callback {return null;}
    public function getFastSingletonMethod2(method:String, arg1:Class, arg2:Class):Callback {return null;}

    /**
     * gets a singleton (class) method with 3 arguments.
     * @param method name of the method
     * @return a CallBack object corresponding to the appropriate method
     **/
    public function getSingletonMethod3(method:String, arg1:Class, arg2:Class, arg3:Class):Callback {return null;}
    public function getFastSingletonMethod3(method:String, arg1:Class, arg2:Class, arg3:Class):Callback {return null;}

    public function getBlockMethod(method:String) {return null;}
   // public function getBlockCallback(method:String, scriptObject:Object):CompiledBlockCallback {return null;}

    /**
    * gets a singleton (class) method with no mandatory argument and some optional arguments.
     * @param method name of the method
    * @return a CallBack object corresponding to the appropriate method
    **/
    public function getOptSingletonMethod(method:String):Callback {return null;}
    public function getFastOptSingletonMethod(method:String):Callback {return null;} 

    /**
    * gets an instance method with no mandatory argument and some optional arguments.
     * @param method name of the method
    * @return a CallBack object corresponding to the appropriate method
    **/
    public function getOptMethod(method:String):Callback {return null;}
    public function getFastOptMethod(method:String):Callback {return null;}
    
    public function createDispatcher( metaClass:RubyClass):Dispatcher {return null;}

    private static var reflection: Boolean =  false;
    private static var dumping: Boolean =  false;

/*     {
       if (Ruby.isSecurityRestricted())
           reflection = true;
       else {
           if(SafePropertyAccessor.getProperty("jruby.reflection") != null && SafePropertyAccessor.getBoolean("jruby.reflection")) {
               reflection = true;
           }
           if(SafePropertyAccessor.getProperty("jruby.dump_invocations") != null) {
               dumping = true;
           }
       }
    } */

    public static function createFactory(runtime:Ruby, type:Class):CallbackFactory{
        return createFactory2(runtime, type, runtime.getJRubyClassLoader());
    }

    // used by compiler
	public static function createFactory2(runtime:Ruby, type:Class, classLoader:JRubyClassLoader):CallbackFactory{
/*         if(reflection) {
            return new ReflectionCallbackFactory(type);
        } else if(dumping) {
            return new DumpingInvocationCallbackFactory(runtime, type, classLoader);
        } else {
            // FIXME: No, I don't like it. */
            return new InvocationCallbackFactory(runtime, type, null);
        
    } 
}
}